US Bridges

SR 20 over Little Pend Oreille R

Good

Stevens County, Washington · 16.2 E JCT US 395 · Structure no. 0007740A0000000

Built
1965
60 years old
Condition
Good
inspected April 2023
Type
Slab
Concrete
Length
61 ft
3 main spans
Daily traffic
789
2023 count
Owner
State
State Highway Agency

About this bridge

SR 20 over Little Pend Oreille R is a concrete slab carrying SR 20 over Little Pend Oreille R in Stevens County, Washington. It was built in 1965, so it is 60 years old, older than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 789 vehicles a day, roughly 15% of them trucks, projected to reach 920 by 2039. The structure is 61 ft (18.6 m) long and 31 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesSR 20
CrossesLittle Pend Oreille R
Location16.2 E JCT US 395
RouteState Highway 20
Coordinates48.52642, -117.63844
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length61 ft (18.6 m)
Longest span45 ft (13.7 m)
Deck width31 ft (9.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic789 (2023)
Projected traffic920 by 2039
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$956,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 20 over Little Pend Oreille R built?

It was built in 1965, making it 60 years old in 2025.

What condition is SR 20 over Little Pend Oreille R in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.

How much traffic does SR 20 over Little Pend Oreille R carry?

About 789 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is SR 20 over Little Pend Oreille R?

The structure is 61 ft (18.6 m) long with a longest span of 45 ft (13.7 m) and a deck 31 ft wide.

Who owns SR 20 over Little Pend Oreille R?

It is owned by the State Highway Agency.